Means for preparing urinary drainage collection bottle



S. S. STEVENS June 4, 1963 MEANS FOR PREPARING URINARY DRAINAGECOLLECTION BOTTLE Filed June 29, 1961 FIG.

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mm mT W S mm L P E H S D W F m TI 5 ATTO R N EY United States Thisinvention relates to urinary drainage collection bottles and moreparticularly to means for reclaiming and using previously usedintravenous solution bottles for urinary drainage collection.

Urinary collection bottles and systems are widely known and used. To beacceptable a urinary drainage system must be closed but vented, secureand sanitary with no danger of backfiow.

It is an object of my invention to provide such a system quickly andeasily and at a lower cost than present systems.

It is a further object to provide means for supplying suitable bottlesfor such a system from previously used intravenous solution bottles.

Another object is to provide a cap for a collection bottle which may besterilized and fitted in one operation.

Still another object is to provide a bottle assembly which may be storedafter sterilization until its use hecomes necessary.

A better understanding of my invention will occur from a perusal of thefollowing specification and claims which describe the preferredembodiment of my invention as shown in the drawing in which:

FIGURE 1 is a perspective elevational view of a urinary collectionbottle as prepared by my novel means, ready for storage.

FIGURE 2 is a top plan view of the novel cap used on the bottle ofFIGURE 1.

FIGURE 3 is a cross-sectional elevation view of the cap taken on line3-3 of FIGURE 2.

FIGURE 4 is a cross-sectional elevational View of the collection bottleof FIGURE 1 in actual operation.

Viewing the drawing with greater particularity, generally depicts aprepared bottle assembly ready for service. This assembly is composed ofa previously emptied intravenous solution bottle 12, a cap and aprotective covering 30 retained in place by a rubber band 32. An exampleof the type of bottle to which I make reference is that sold under thename M-acbick. This bottle has a neck 14 suitable for tight engagementby the cap 20.

The cap construction is best shown in FIGURES 2 and 3. The basic shapeof the cap 20 is selected as that best able to fit the neck 14. In thecase presented here, and shown in FIGURE 2, the cap is round andcontains a central circular opening 21. Bordering the opening on theinterior of the cap is a circular lip 22 suitable for engaging astandard size drainage tube 34 (see FIGURE 4). Diametrically opposed onopposite sides of the central opening 21 are two vent holes 23 and 24.

The cap has a circular sidewall 25 extending downwardly from the top 28of the cap. On the interior surface of the sidewall at its outer edge isa small bead 26 which goes completely around the interior surface of thecap.

At one point on the exterior portion of the sidewall at the outer edgeis a tab 27 to facilitate grasping the cap. Preferably for ease inmanufacture this tab is placed in line with the vent holes 23 and 24.

To prepare a bottle for use a clean used solution bottle such as shownby 12 is selected. The bottle is then covered by pressing the cap 20onto the neck 14. The

ate

cap is of such a size as to loosely engage the bottle neck 14. A coveris then placed over the cap. This cover may be a square of autoclavepaper or as shown in FIG- URE l at 30, a square pad gauze retained inplace by a rubber band 32 fastened about the gauze and neck 14.

The complete assembly as described above is then placed in an autoclaveand kept there preferably at a temperature of 250 degrees Fahrenheit fora preferred period of 30 minutes. To fulfill the requirements of myimproved method it is important that the cap be made of a suitable heatshrinkable material. The material which I have found preferable is aplastic known as linear polyethylene. Since this material will softenunder excessive heat it is essential that the autoclave temperature notexceed 255 degrees Fahrenheit.

With the bottle raised to the preferred temperature in the autoclave thecap will shrink-fit about the neck 14 until the small bead 26 on thesidewall 25 is in tight engagement with the neck 14. At the same timethe bottle and cap will be sterilized. Upon removal from the autoclavethe entire assembly may be stored until it is required for use.

To use the prepared assembly the pad 30 is removed, then the distal endof a standard drainage tube 34 is inserted through the opening 21 in thecap. FIGURE 4 shows such an assembly in operation with fluid 35collecting in the bottle. Upon completion of the drainage, the cap 26'is removed and discarded.

Having shown and described a preferred embodiment of the presentinvention, by Way of example, it should be realized that structuralchanges could be made and other exmples given Without departing fromeither the spirit or scope of this invention.

What I claim is:

In combination a bottle having a neck and mouth with a cap forsupporting and carrying a drainage tube, said cap including a fiat topwall positioned over the mouth of said bottle, said top wall having anannular opening formed in the center thereof, the portion of the capdefining said opening terminating in a circular lip depending from thebottom surface of said top wall, a plurality of vent holes provided insaid top wall on opposite sides of said annular opening, an annular sidewall formed integrally with said top wall and arranged in concenticrelation with said circular lip for encompassing said neck, an annularbead formed on the inner surface of said side wall at the free endthereof for engaging the neck of said bottle, an outwardly projectingtab formed on the free end of said side wall with said tab and beadbeing disposed in a common plane, said cap being formed of a heatshrinkable thermoplastic material whereby said cap will shrink into firmengagement with the mouth and neck of said bottle upon the bottle andcap being heated to a temperature of approximately 255 Fahrenheit for aperiod of approximately thirty minutes, and said circular lip engagingsaid tube for retaining said tube in said cap.

References Qited in the file of this patent UNITED STATES PATENTS OTHERREFERENCES German application 1,048,481, printed Jan. 8, (K1. 59c 10).

